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Related Concept Videos

Surface Membrane Barriers01:18

Surface Membrane Barriers

The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
Hand hygiene01:23

Hand hygiene

Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
Chemical Agents for Microbial Control01:27

Chemical Agents for Microbial Control

Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...

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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
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Published on: November 5, 2016

Non-specific microbicide product development: then and now.

Joseph W Romano1, Melissa Robbiani, Gustavo F Doncel

  • 1NWJ Group, LLC, 101 Oakford Circle, Wayne, PA 19087, USA. Jromano.nwjgroup@gmail.com

Current HIV Research
|January 24, 2012
PubMed
Summary

Developing effective HIV prevention strategies remains crucial. While antiretroviral drugs show promise, non-specific microbicides are being revisited due to limitations of current approaches.

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Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • Despite identifying HIV-1 as the cause of AIDS, a sterilizing vaccine is still unavailable.
  • Efforts to prevent HIV transmission have shifted to alternative strategies beyond vaccines.
  • Microbicides, topical products for preventing sexual HIV transmission, were an early alternative strategy.

Purpose of the Study:

  • To review the history and evolution of microbicide development for HIV prevention.
  • To outline the limitations of current antiretroviral (ARV)-based prevention methods.
  • To summarize ongoing research and development in non-specific microbicide products.

Main Methods:

  • Historical review of non-specific microbicide development.
  • Analysis of the evolution towards ARV-based microbicides and oral prevention.
  • Summary of current research activities in non-specific microbicide product development.

Main Results:

  • First-generation non-specific microbicides failed to demonstrate efficacy in clinical trials.
  • ARV-based prevention strategies have shown efficacy but present challenges like toxicity, resistance, and cost.
  • The rationale for non-specific microbicides remains valid, necessitating continued development.

Conclusions:

  • Non-specific microbicides offer a viable alternative for HIV prevention, addressing limitations of ARV-based methods.
  • Continued research into non-specific microbicides is essential for effective HIV prevention strategies.
  • The development of broadly active, non-specific microbicides is a critical area for future HIV prevention efforts.